Sean Connolly

Sean Connolly (died 26 April 1916) was an Irish Citizen Army officer during the 1916 Easter Rising. On 24 April 1916, he led the ICA assault on Dublin Castle, personally shooting the unarmed Royal Irish Constabulary officer James O'Brien dead after he refused to open the gates. He called for a retreat to City Hall rather than risk being outnumbered, and he was wounded by a sniper on the castle's roof while hoisting the Irish flag during City Hall's defense from the British Army.